Home / 449,127.30-674,042.86-313,307.94

Finding the Fourth Proportional to 449,127.30, 674,042.86 and 313,307.94

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Solution

The fourth proportional to 449,127.30, 674,042.86 and 313,307.94 is: 470,207.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,127.30 : 674,042.86 = 313,307.94 : x
  2. Step 2: Convert to fraction form
    449,127.30/674,042.86 = 313,307.94/x
  3. Step 3: Cross multiply
    449,127.30x = 674,042.86 × 313,307.94
  4. Step 4: Simplify right side
    449,127.30x = 211,182,979,938.31
  5. Step 5: Solve for x
    x = 211,182,979,938.31/449,127.30
  6. Step 6: Final answer
    x = 470,207.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.